
The AirTAC Airtac DMSHS Electronic Sensor DMSHS-020 is a genuine DMS magnetic position switch. It senses the magnet ring in a pneumatic cylinder's piston and signals when the piston reaches that point, giving a 2-wire output on 10-28 V DC with a 2 m flying lead. It only works on a cylinder that carries a piston magnet.
This DMSHS-020 is an electronic magnetic position switch from AirTAC: a solid-state sensor that detects the piston magnet inside a cylinder ordered with the magnet option. The output is 2-wire, the supply range is 10-28 V DC, the housing is rated IP64, and the connection is a 2 m flying lead that can be trimmed to length during installation. The trailing S after the profile H is a factory variant we do not decode in public data - tell us your cylinder series and we will confirm its meaning from the datasheet.
Flying leads earn their keep on long runs: 2 m reaches across a machine frame without a connector block, and the surplus can be cut off for a tidy panel. With no contacts to wear, the solid-state output suits high-cycle stations far better than a reed capsule would. Remember the H profile governs groove fit, and the switch is dead weight until the cylinder actually carries a magnet.
| Model | Airtac DMSHS Electronic Sensor DMSHS-020 |
|---|---|
| Family | DMS — Electronic cylinder switch |
| Technology | Electronic (solid-state) |
| Output | 2-wire |
| Outputs in this family | 2-wire, NPN 3-wire or PNP 3-wire |
| Lead / connector | 2 m flying lead |
| Supply voltage | 10-28 V DC |
|---|---|
| Protection rating | IP64 |
| Version | Standard version |
| Profile letter | H (cylinder-groove fit) |
| Profiles in this family | E, G, H, J |
| Detects | Piston magnet ring inside the cylinder |
2-wire versions run 10-28 V DC; NPN / PNP 3-wire versions run 5-30 V DC. IP64 as standard. Order the RW version where coolant, washdown or constant cable flexing is present. Switching distance, response time, current rating, voltage drop, LED behaviour, contact life, weight and dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| DMS | Electronic cylinder switch — electronic (solid-state). |
|---|---|
| H | Profile letter: the mounting / groove type that fits a particular cylinder body. This family offers E, G, H, J. It is a fit code, not a performance grade. |
| (blank) | Output: 2-wire. Blank is 2-wire, N is NPN 3-wire, P is PNP 3-wire. |
| 020 | 2 m flying lead. 020 / 030 / 050 / 100 are 2 / 3 / 5 / 10 m flying leads; M08 and M12 are M8 / M12 connector versions. |
| (blank) | Standard version. |
We do not hold the full profile-to-cylinder-series table, so confirm the profile letter against your cylinder model before ordering — send us the cylinder part number and we will check the fit.
The split is electrical, not quality. Solid-state DMS and EMS are DC-only and suit modern PLC inputs; the reed-based CMS switches a much wider window, so it is the one for AC circuits, relay logic and older panels. The RW (IP68) option exists on DMS and EMS only.
| This switch | DMSH · 2-wire · 10-28 V DC |
|---|---|
| Consider EMS | the mini 2-wire electronic switch for tight installations |
| Consider CMS | the reed alternative for AC circuits and voltages up to 240 V |
| Mounting parts | F-MQ (round body), F-ACT (tie-rod) |
On an ASRS lifting stage, the 2 m lead spans from the groove-mounted sensor down to the junction rail, trimming cleanly where the run falls short.
A die-change clamp cylinder on a workshop press confirms full clamp through this switch before the interlock releases the guard.
Solid-state switching with no contact wear makes the sensor a fit for an ejector cylinder that fires every second on a fast assembly line.
This model is the budget routing of the DMS electronic family: 2-wire, DC-powered, terminated in bare cable. If the PLC input would rather see a switched dedicated line, move to a 3-wire NPN (N) or PNP (P) DMS; if the machine lives on AC or needs the 5-240 V AC/DC spread, a CMS reed switch is the correct family instead. Oily wash zones call for the -RW version, which lifts sealing to IP68. Match the profile letter to the cylinder groove before ordering - wrong profile, no seat.
Quick checklist
Use the F-MQ bracket on round-body cylinders and F-ACT on tie-rod cylinders where there is no groove to seat the switch. Both are ordered separately from the switch. Switching distance and mounting dimensions come from the factory datasheet — ask us for the sheet that matches your cylinder.
In one place: electronic solid-state switch, 2-wire output, 10-28 V DC supply voltage, IP64 protection rating, 2 m flying-lead connection. For switching current and residual figures, request the datasheet.
The S directly after the profile letter is a factory build variant that our published data does not decode. We treat the unit as the general 2-wire electronic type and will confirm the variant's exact meaning against the datasheet when you enquire - no guesswork.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, your cylinder model (so we can confirm the profile fit) and the destination. We confirm price, availability and lead time — usually within 7-8 hours.